Improvement in stencil-plates



L. ROBINSON.

lmprnS/ement i'n Stencil-Plates.

No. 132,691'. Patentamt. 29,1812.`

NITED STATES PATENT OFFICE.

LESTER ROBINSON, OF NEW HAVEN, ASSIGNOR TO E. B. MANNING, OF lMIDDLETOWN, CONNECTICUT.

IMPROVEMENT IN STENClL-PLATES.

Specification forming part of Letters Patent No. 132,691, dated October29, 1872.

-which said drawing constitutes part of this specification andrepresents, in

Fignre l, a top or plan view of the plate as l ready for use ,in Fig. 2,a perspective view of one of the letters; and in Fig. 3, a longitudinalcentral section on line x w, enlarged.

This invention relates to an improvement in the construction ofstencil-plates, whereby the letters are made interchangeable; and itconsists in forming the letters or characters on separate plates ofsheet-metal, each plate constructed with perforations, and a portionofthe plate raised to form a loop for the frame, which supports a seriesof these lettersto pass through.

A is one of the letters, shown detached in Fig. 2, and of any desirablesize. At each end the plates are perforated, as at a a and d, (see Figs.2 and 3,) and between the two perforations a a the metal is raised orstruck up so as to form a loop, b, as also at the perforation d upon theopposite edge to form a half-loop, f, so that a bar, B, denoted in solidblack, Fig. 3, may be passed through 'these two loops, running over theplate between the two, as denoted in Figs. 1 and 3.v A similar bar, B,is provided for the opposite end, and both of these bars secured to thehead-piece C. By preference one edge of one plate is made to overlap theother so as to break the joint.

I do not wish to be understood as broadly claiming a stencil-plate inwhich the letters or characters are provided with means of attachmentinterchangeably to the parallel rods, as such is not new.

I claim as my invention- As an article of manufacture, a stencil-platehaving the letters or characters formed therein, and constructed at itstwo ends to form the loop b and half-loop f, combined with the two bars,B B, substantiatly as described, for adjustment of the plates.

LESTER ROBINSON.

Witnesses A. J. TIBBrTs, J. H. SHUMWAY.

